Which statement describes a dry solid pesticide formulation that requires continuous agitation during handling?

• A. Wettable Powders (WP)
• B. Dusts (Dust)
• C. Granules (Gran)
• D. Pellets (Pel)

Answer: (A)

Continuous agitation is required for wettable powders because they are fine dry formulations that must form and stay in suspension when mixed with water. When you add a wettable powder to water, its particles need constant stirring to wet thoroughly and remain evenly dispersed; otherwise the powder settles, clumps, or sticks to the tank, leading to uneven application and clogged nozzles. The other dry forms—dusts, granules, and pellets—are designed to be used either as dry products or as coarse materials that don’t rely on staying dispersed in water, so they don't require continuous agitation during handling in the same way. Therefore, the statement describing a dry solid formulation that needs continuous agitation is about wettable powders.